package 动态数组.队列.接口;

import 动态数组.栈.接口.Stack;

public abstract class AbstractArrayDoubleEndStack<E> implements Stack<E> {
    @Override
    public void push(E element) {

    }

    @Override
    public E pop() {
        return null;
    }

    @Override
    public E peek() {
        return null;
    }
}
